Home›Rocks and Minerals›Minerals›Where Found›VietnamBrowse ByVietnamVietnamComments (0)Reader Challenges (0)VietnamFilter Results1 entryStrunz ClassAllOxides and Hydroxides (1)Crystal SystemAllCubic Crystal System (1)HardnessAll7.5 to 8.5 Mohs (1)LustreAllEarthy (1)Vitreous (1)ColourAllBlue or Purple (1)Brown (1)Green (1)Grey or Black (1)Orange or Yellow (1)Red or Pink (1)RarityAllRare (1)UseAllGemstone (1)Formed By (Process)AllMagmatism (1)Metamorphism (1)Show ResultsSpinelVietnamComments (0)No comments yet. Be the first to share a thought.Sign in to join the discussion.Reader Challenges (0)No disputes yet. Spotted an error or a better source? Open the first one.Sign in to dispute this or suggest a correction.